Journal of Stress Physiology &
Biochemistry, Vol.
8 No. 4
2012, pp. 143-156 ISSN 1997-0838
Original Text Copyright (cc) 2012 by Yumurtaci, Uncuoglu
ORIGINAL
ARTICLE
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QueryDate : 2016-12-24
Cites : 1
Tissue specific responses
alter the biomass accumulation in wheat under gradual and sudden salt
stress
Aysen Yumurtaci1* and
Uncuoglu A.A.2
1
University of Marmara, Faculty of Science and Letters, Department of
Biology, Istanbul, Turkey 2 University of Marmara, Faculty of Engineering, Department
of Bioengineering, Istanbul, Turkey
Salinity is one the major limiting
environmental factors which has negative side effects on crop
production. The purpose of this study was to investigate the
differences between the gradual and sudden salt stress effects on
biomass accumulation associated with whole plant development in three
different tissues of two wheat species ( Triticum aestivum and Triticum
durum) under hydroponic conditions in the long term. Considering the
effects of sudden and gradual stress for biomass accumulation, while
importance of salinity x genotype interaction for fresh weights was 5%,
association for salinity x tissue type was found as 1% important.
Interestingly, root branching and development of lateral roots were
much more negatively affected by gradual stress rather than sudden salt
application. Our results demonstrated that root and leaf were both
critical tissues to test the salt tolerance by physiologically but
sheath tissue might be used as an alternative source of variation for
solving the interactions between root and leaves in wheat. Key
words: biomass, hydroponics, physiology, salinity, wheat
